文学是语言的艺术,语言是文学的艺术。
代数群的算术是理解朗兰兹猜想的关键。
Walls define space, but openings connect it to the world.
The greatest happiness is to know the source of unhappiness.
Happiness depends upon ourselves.
一旦某件事成为激情,动力自然就来了。